CVE-2026-13367

Local root privilege escalation

Published Aug 12, 2026 · Updated Aug 12, 2026

Improper access control in IBM Informix Dynamic Server 14.10 and 15.0 allows local users to gain root privileges through oninit. The oninit executable runs setuid root, but IBM has not disclosed the missing or incorrect authorization operation that enables escalation. Exploitation requires a local authorized low-privileged account and grants root privileges on the host.

CVSS severity7.8
High
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in IBM Informix Dynamic Server 14.10 and 15.0 allows local users to gain root privileges through oninit. The oninit executable runs setuid root, but IBM has not disclosed the missing or incorrect authorization operation that enables escalation. Exploitation requires a local authorized low-privileged account and grants root privileges on the host.

The record

CVE
CVE-2026-13367
Published
Aug 12, 2026
Updated
Aug 12, 2026
Vendor
IBM
Product
IBM Informix Dynamic Server
Classifications
CWE-284, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=14.10
  2. Affected versionversion=15.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

IBM · IBM Informix Dynamic Serverversion=14.10; version=15.0

Published CVSS scores

7.8IBM CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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